Since Raxithak became Abbot at the age of twenty five and made Xiao his secretary, they could properly protect Princess Aurelia when she came seeking help from the Monastery.
Prince Alexander relied on him more than ever, and as advised from Raxithak, the prince stayed at the Monastery even after graduation to save himself from the headache of his royal siblings. Alexander was proficient in using his mana and his shadow powers, since he made the occasion visit to the capital city and steal some books from the royal palace.